Sanitary napkin



July 2, 1935. G. w. LINDSEY 2,006,697

SANITARY NAPKIN Filed Ja'n. 8, 1934 Patented July 2, 1935 UNITED STATES SANITARY NAPKIN George Walter Lindsey, Rockville Center, N. Y., assignor of one-fourth to Charles R. Landon,

Ozoner Park, N.v Y.

Application January 8, 1934, Serial No. 705,644

1 Claim. (Cl. 12S-290) My invention relates to an improvement in a sanitary naplzinand its novelty liesy in the combination, adaptation' and arrangement of parts as will be more fully hereinafter pointed out.

Most or" the sanitary napkins now used by women are made of cellulose and are Very absorbent but the middle portion of these napkins fill up with the menstrual iiow and this rapidly soaks through in the central portion and goes through the bottom and also travels to the unprotected edges and so spots the underwear and other garments.

My device: solves this problem, furnishing a napkin that is protected against soaking through the bottom by an overlapping or double moisture repellent member and also protected by an overlapping double protection on its edges so that it cannot spot or stain the clothing of the wearer either through the bottom or sides particularly of the middle portion and yet is so constructed that the entire napkin is disposable through the toilet hopper into the sewer.

Referring to the drawing, Figure 1 is a top plan View of the preferred form of my device having a portion broken away and one end folded back in fastening position.

Figure 2 is a side elevation of Figure l.

Figtue 3 is a top plan View of another form of my device.

Figure 4 is a cross section on the line 4 4 of Figure l.

Figure 5 is a cross section on the line 5-5 of Figure 1.

Figure 6 is a top -plan View of the moisture repellent wrapper as shown in Figure 1 with the outer portion broken away for convenience in illustration.

Figure 7 is a top plan view of the moisture repellent Wrapper as shown in Figure 3 with the outer portion broken away for convenience in illustration.

In the drawing I is the central pad preferably made of a plurality of layers of cellulose material over which a chemically treated moisture repellent wrapper I I is adapted to be folded so as to lay over the top of the pad I0 and come down around the side edges 40 and fold over the bottom of the pad ID so as to overlap one edge 2| o'f the wrapper I I over the other edge 22 on said bottom and then secured (or not, as preferred) together at 23 with a light adhesive. The overlapping edges 2| and 22 may preferably extend across the full width of the pad I0 so as to form a complete wrapper II of double thickness over the entire bottom of said pad I 0. In the preferred form of my device shown in Figure l the Wrapper EI is cut on the lines I2, I3, I4, I and I6 and the side iaps Il and i8 formed thereby are turned back on the folds I9 and 2i) respectively to form the turn back flaps il and I8 and thereby provide double side Wall protection to the central pad Il). Also the end flaps 2li and 25 are turned back on the lines or edges 26 and 2'I to form end flaps 24 and 25 and thereby strengthen the edges 26 and 2l' against possible tearing. This construction is clearly shown in Figures l, 2, 4, 5, and 6 and an opening 35 is thereby formed in the top of said chemically treated moisture repellent wrapper II. Y

A second form of my `device is shown in Figures 3 and 7 in which the moisture repellent wrapper I! is cut along lines 28, 29 and 3G so as to form naps 3I and 32 which are adapted to be folded back along lines 33 and 34 respectively thereby eiecting the desired opening 35 in the moisture repellent wrapper I I and furnishing a double side wall moisture repellent construction over the side edges of the central pad I0.

A piece of light weight gauze 36 is ladapted to be folded around the topof the combined central pad I0 and moisture repellent Wrapper II as described in both forms as shown in Figures 1 and 3 so as to overlap at 31 along the central portion of the bottom of the same. The use of the gauze 35 entirely enclosing the central pad I0 and the chemically treated moisture repellent wrapper I I as it draws at each end tends to fold in the corners of the wrapper II thereby forming rolled corners 38.

The ends of the chemically treated Wrapper I I are adapted to project beyond the ends of the central pad IG and thereby form with the ends of the gauze 36 a combined roll or fold 39 at each end for pinning or fastening the napkin at each end 39 to a belt or other SupDOrtng means in position for use.

The wrapper II so enoases the central pad I0 with an opening 35 on the top side in both the structures of Figures 1 and 3 that it thereby presents this `open portion 35 for the menstrual iiow or otherV usual use as worn next `to the vaginal opening of the user.

The wrapper I I must be chemically treated in a way to make it soft and pliable and non-injurious in use and also make it moisture repellent so as to be effective as described in its use herein. Applicant makes use of a chemical treatment for securing this result, which treatment involving the use of trichlorethylene as a solvent with a fatty acid such as stearic acid is independent of the invention described and claimed herein but which has been found by actual test to be eective in securing ,the required results, and harmless in use. v

The device also furnishes a napkin that will hold a. much greater quantity of menstrual oW as the chemically treated vmoisture repellent Wrapper Il will prevent soaking through the pad l0 in its central portion because the edges 2| and 22 are sufficiently overlapped to form a'double thickness and the consequent passing offgof such excess. This will thereby compel the excess liquid to saturate beyond the central portion and toward and into the end portions of the Ypad I0 which portions are not utilized in the'prior art. These end portions of the padr I0 have not been used heretofore in the prior art becauseof the soaking through in the central portion and consequent passing off of such excess inthe staining of the underwear and therefore these end portions actually `come into use for the first time because of the overlapping of the edges 2| and 22 of the moisture repellent wrapper Il on the bottom which holds theexcess moisture and thereby compels it to'travel byabsorption into the end portions of the pad I0.

The chemically treated moisture repellent wrapper Il may -be used in oneV or more thicknesses as may be found desirable in order to insure the required strength but in the devices illustrated only one thickness is shown as` that hasbeen found practicalv in actual use. t

It will be apparent that many variations may be made in the details of rm' device Without departing `from the spirit and intent of the same.,

l1 claim: Y n Y Y In a sanitary napkin a centralpad of cellulose, a wrapper of chemically treated moisture repellent Vcellulose encasing said pad and overlapping at the bottom so as to form a, double thickness` thereover and having an opening in the upper face at its central lportion with turn back elementsv form- Y ing a double thickness over' the side edges of the central pad anda'piece ofl gauze folded thereover so as toform fastening tabs at each end.

GEORGE WALTER LINDSEY. 

